High withstand voltage IGBT DC power distribution based electric vehicle charging station

Abstract

The invention discloses a high withstand voltage IGBT DC power distribution based electric vehicle charging station. The high withstand voltage IGBT DC power distribution based electric vehicle charging station comprises a high-voltage circuit breaker, a high-voltage power frequency transformer, a high-voltage DC conversion device and a charger. A three-phase high-voltage input voltage is connected with the high-voltage power frequency transformer through the high-voltage circuit breaker; the output end of the high-voltage power frequency transformer is connected with the high-voltage DC conversion device; and the high-voltage DC conversion device converts a three-phase high-voltage input AC power into a DC power and then supplies to DC power to the charger. By adoption of the high withstand voltage IGBT, the high-voltage DC conversion device realizes power factor correction, LLC full bridge inversion and a DC power distribution scheme of converting the three-phase high-voltage input AC power into the DC power and then supplying the DC power to the charger; and without power factor correction, the design of the DC charging module is simplified, the power density of the DC charging module is improved, the reliability of the charger is improved and the cost of the charger is reduced. In addition, the high withstand voltage IGBT DC power distribution based electric vehicle charging station increases the device IP protection level, improves the working reliability of the device in an outdoor malicious environment and prolongs the service life of the device.

Description

Technical field [0001] The invention is an electric vehicle charging station based on high withstand voltage IGBT DC power distribution. In particular, it relates to an electric vehicle charging station with high power non-vehicle DC power distribution. It belongs to the electric vehicle charging station based on high withstand voltage IGBT DC power distribution. Station's innovative technology. Background technique [0002] With the popularization of electric vehicles, there are more and more applications of high-power charging equipment, and there are more and more high-power electric vehicle charging stations. Traditional high-power charging station equipment has low efficiency, high construction costs and a large area, and there is an urgent need for breakthroughs. A low-cost, highly reliable high-power charging station technology. Contents of the invention [0003] The object of the present invention is to consider the above problems and provide an electric vehicle c...

AI Technical Summary

Problems solved by technology

[0002] With the popularization of electric vehicles, there are more and more applications of high-power charging equipment, and there are more and more high-power electric vehicle charging stations. The traditional high-power charging station equipment has low efficiency, high construction costs, and a large footprint. It is urgent to break through A low-cost, high-reliability high-power charging station technology

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